1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Brittle, Metallic, Brittle, Metallic
Uneven, Uneven, Gems, Sixth Edition (2006)
1.6 Cleavage
Perfect on {001}
{001} Perfect, {010} Good
1.7 Mohs Hardness
1.8 Chemical Composition
Ca(Mg,Al)3(Al3Si)O10(OH)2
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)